Biology-The Circulating System

Question 1

The blood is made up of

Answer 1

4 compounds

Question 2

Plasma

Answer 2

Carries cells and transparent materials around the body

Question 3

Red blood cells

Answer 3

Contain haemoclobin that transport oxygen

Question 4

White blood cells

Answer 4

Fights infection

Question 5

Platelets

Answer 5

Clot the blood

Question 6

Veins

Answer 6

Brings blood to the heart
Low pressure
Have valves to prevent back-flow
No oxygen, Thin walls

Question 7

Arteries

Answer 7

Brings blood from the heart
High pressure
Oxygenated blood, thick walls

Question 8

Capillaries

Answer 8

Small thin walls
Connect arteries and veins
Allow oxygen to leak out and get to the cells

Question 9

Cardiac muscle

Answer 9

Muscle that doesn’t get pierced

Question 10

Septum

Answer 10

Wall that separates the two sides of the heart

Question 11

Valves

Answer 11

Prevents back-flow

Question 12

Vena cava

Answer 12

Takes deoxygenated blood back to the heart

Question 13

Pulmonary artery

Answer 13

Takes blood to the lungs to collect oxygen

Question 14

Pulmonary vein

Answer 14

Takes oxygenated blood back to the heart

Question 15

Aorta

Answer 15

Takes blood around the body